Have you noticed all the tough guys on TV wearing pink? They are doing their part to remind us that October is National Breast Cancer Awareness Month. Many women fear this disease with good reason: it can be fatal, can be treated with disfiguring results, and can run in families. One goal of the pink ribbons is to encourage women over 40 to get screening mammograms. But many women don’t know enough about how to prevent this disease. One way to significantly reduce breast-cancer risk is as close as the sneakers in your closet. A woman who exercises at moderate levels for at least three hours per week decreases her risk of getting breast cancer by 30- 40 percent; this has been demonstrated by over 25 scientific studies. This is similar to the reduction in risk from taking the medicine tamoxifen, but without the nasty side effects. Just walking for 30 minutes a day 6 days a week could mean survival!